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2 years ago

Find the least common multiple of 4, 2, and 7

Mathematics

2 answers:

amm18122 years ago

5 0

Answer:

Step-by-step explanation:

So we know that 2 is already a multiple of 4 so we can just find the least common multiple of 4 and 7. So we can do:

4, 8, 12, 16, 20, 24, 28

7, 14, 21, 28

So the least common multiple between 4, 2, and 7 is 28

RUDIKE [14]2 years ago

5 0

2,4,6,8,10,12,14,16,18,20,22,24,26,(28)

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Step-by-step explanation:

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Gary needs 24 screws for every 2 chairs he builds

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3 years ago

You have just bought a new television and it has an aspect ratio of 16:9. The screen on the television is 65 inches. What is the

dem82 [27]

Answer:

Width of T.V. is 21.94 inches Height is 39 inches and area is 855.66 square inch.

Step-by-step explanation:

When we buy an electronic item like T.V or Blue Ray aspect ratio is the term which is used by the salesmen or technicians. Aspect ratio is actually the ratio of length and breadth of the screen of a device or ration of width and height.

In this question aspect ratio of television is given as 16:9

This can be written as $\frac{W}{H}=\frac{16}{9}$ or $W=\frac{16}{9} H$

Screen of the T.V. is 65 inch which is the diagonal length of the screen.

We know from pythagoras theorem in a right angle triangle

$(diagonal)^{2}=(base)^2+(height)^2$

$(65)^2=(Base)^2+(height)^2$

$(65)^2= W^2+H^2 = (\frac{16}{9}H)^2+H^2$

$(65)= \sqrt{\frac{16}{9}H^2+H^2}\\ 65=H\sqrt{\frac{16}{9}+1}\\ 65=H\sqrt{\frac{25}{9}}\\ 65=\frac{5}{3}H\\ H=39 inches$

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3 years ago

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e-lub [12.9K]

<h2>Answer: 67</h2>

Step-by-step explanation: 6.7 x 10^1 = 67

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2 years ago

A right angle has an area of 13m*2. The dimensions of the triangle are increased by a scale factor of 3. What is the area of the

Alex_Xolod [135]

The answer is: 117m²

The explanation is shown below:

1. You have the following information given in the problem:

- The triangle has an area of 13 m².

- The dimensions of the triangle are increased by a scale factor of 3.

2. Therefore, to solve the exercise you must multiply the area by $3^{2}=9$ , as following:

$A=(13m^{2})(9)\\A=117m^{2}$

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3 years ago